Monodisperse nanoparticles of metal oxides prepared by membrane emulsification using ordered anodic porous alumina

Abstract

Uniform-sized nanoparticles of metal oxides were fabricated by membrane emulsification using ordered anodic porous alumina as a membrane and subsequent solidification. The size of the nanoparticles could be controlled by adjusting the pore size of the anodic porous alumina membrane. This process allows the high throughput preparation of monodisperse nanoparticles of various types of metal oxide with controlled size due to the capability of continuous formation of monodisperse emulsion droplets through the porous membrane.